diff --git a/src/main/java/org/mongoste/query/DefaultQuery.java b/src/main/java/org/mongoste/query/DefaultQuery.java
index 043c1d4..1ca7388 100644
--- a/src/main/java/org/mongoste/query/DefaultQuery.java
+++ b/src/main/java/org/mongoste/query/DefaultQuery.java
@@ -99,7 +99,19 @@ public Query limit(Integer maxResults) {
      */
     @Override
     public Query filterBy(QueryField field,Object value) {
-        return filterBy(field,new QueryFilter(QueryOp.EQ,value));
+        return filterBy(field,QueryOp.EQ,value);
+    }
+
+    
+    /**
+     * Sets a filter to a single field with an operation
+     * @param field Field to filter by
+     * @param operation Filter operation
+     * @param value Value to apply
+     * @return
+     */
+    public Query filterBy(QueryField field,QueryOp operation,Object value) {
+        return filterBy(field,new QueryFilter(operation,value));
     }
     
     /**
diff --git a/src/main/java/org/mongoste/query/Query.java b/src/main/java/org/mongoste/query/Query.java
index 5752988..51e2d7c 100644
--- a/src/main/java/org/mongoste/query/Query.java
+++ b/src/main/java/org/mongoste/query/Query.java
@@ -64,6 +64,15 @@ public interface Query extends Serializable {
      */
     Query filterBy(QueryField field, Object value);
 
+    /**
+     * Sets a filter to a single field with an operation
+     * @param field Field to filter by
+     * @param operation Filter operation
+     * @param value Value to apply
+     * @return
+     */
+    Query filterBy(QueryField field, QueryOp operation, Object value);
+
     /**
      * Sets a filter to a single field
      * @param field Field to filter by
diff --git a/src/test/java/org/mongoste/core/impl/mongodb/MongoStatsEngineTest.java b/src/test/java/org/mongoste/core/impl/mongodb/MongoStatsEngineTest.java
index 6d31b1d..f218e9b 100644
--- a/src/test/java/org/mongoste/core/impl/mongodb/MongoStatsEngineTest.java
+++ b/src/test/java/org/mongoste/core/impl/mongodb/MongoStatsEngineTest.java
@@ -45,6 +45,7 @@
 import java.util.Properties;
 import java.text.ParseException;
 import org.mongoste.query.Query;
+import org.mongoste.query.QueryOp;
 import org.mongoste.query.RequiredQueryFieldException;
 
 /**
@@ -682,9 +683,11 @@ public void testGetMultiTargetActionCount() throws Exception {
         System.out.println("result:"+result);
         //TODO check collection
         List<String> targets = Arrays.asList(event.getTarget());
-        //query.filterBy(QueryField.TARGET,QueryOp.IN,targets)
-        //query.filterBy(QueryField.TARGET).in(targets) 
-
+        query.filterBy(QueryField.TARGET,QueryOp.IN,targets);      
+        result = query.getMultiTargetActionCount();
+        assertNotNull(result);
+        assertEquals(1,result.size());
+        System.out.println("result:"+result);
     }
 
     /**